This is cool, but it won't be useful unless Apple opens up the rendering engine for 3rd-party browsers. Chrome is a great browser that is hindered by Apple's rendering engine limitations. The speed and ability of Chrome keep me from every using it.

This has been super helpful in the Gmail app. I don't count on it, but I wish iOS7 had this built in.

iOS has like 8million different browsers because every app has a featureless webview built into their app. (twitter, facebook, prismatic). That makes it difficult to always have your passwords and be logged into sites, which is super important on phones because nobody wants to type that noise.